The living room’s wide fireplace wall is clad with thin slabs of natural stone from Porcelanosa’s Air Slate collection. A petrified- wood table by Aspen Teak and a wood-veneer-and-metal coffee table—done in the initials of the homeowners—provide a rustic counterpoint to a tailored American Leather sofa and a side chair upholstered with leather and vintage canvas sails, all through Cathers Home. The mixed-media painting is by Patrick Lorenzo Semple.